CN107107619B - Black heating device and ink-jet recording apparatus - Google Patents
Black heating device and ink-jet recording apparatus Download PDFInfo
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- CN107107619B CN107107619B CN201580054469.6A CN201580054469A CN107107619B CN 107107619 B CN107107619 B CN 107107619B CN 201580054469 A CN201580054469 A CN 201580054469A CN 107107619 B CN107107619 B CN 107107619B
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- ink tank
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/18—Ink recirculation systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/195—Ink jet characterised by ink handling for monitoring ink quality
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- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Ink Jet (AREA)
Abstract
The black heating device of the temperature unevenness of ink in ink tank on the length direction that can reduce ink tank is provided.Black heating device is the black heating device (80) for being arranged at ink-jet recording apparatus (1), being heated to ink, have: ink tank (50), along its length arrangement stockpile black multiple 1 sub- tanks (51) and the 2nd sub- tank (52) and are integrally formed；And planar heating element (61), ink tank (50) is heated, planar heating element (61) heats the length direction both ends of ink tank (50) with the temperature higher than the length direction central portion of ink tank (50).
Description
Technical field
The present invention relates to black heating device and ink-jet recording apparatus.
Background technique
In the past, it is known that following ink-jet recording apparatus: having the ink gun that ink is sprayed from nozzle, from ink gun to recording medium
It sprays ink and hits, to form image etc. on the recording medium.
There are viscosity due to the heating changed type of the ink used in ink-jet recording apparatus.In order to make the ink from
Liquor charging steadily sprays ink tank to ink gun and from ink gun glibly, need to before ejection ink in advance heated and
Ink is remained into suitable temperature range.
Thus, for example proposing following technology: heating part is arranged in the outer surface of the ink tank to ink gun supply ink, utilizes this
Ink tank is heated and the ink in ink tank is made to become suitable temperature (see, for example patent document 1) in heating part.
Patent document 1: Japanese Unexamined Patent Publication 2009-285907 bulletin
Summary of the invention
However, being only provided with heating part in the length direction one end of ink tank, institute in previous technology as described above
In that case of to stockpile ink in the length direction entirety of ink tank, the temperature that ink is generated in the ink tank is uneven.In this way
In the case where, due to the ink to ink gun supply low temperature, the bad phenomenons such as ejection is bad of ink occur.
Therefore, the issue of the present invention is to provide the temperature of the ink in the ink tank on a kind of length direction that can reduce ink tank
It spends the black heating device of unevenness and has the ink-jet recording apparatus of the ink heating device.
To solve the above problem, the invention that technical solution 1 is recorded provides
A kind of ink heating device, is set to ink-jet recording apparatus, heats to ink, which is characterized in that have:
Ink tank, arrangement stockpiles multiple sub- tanks of ink and is integrally formed along its length；And
The ink tank is heated in heating part,
The heating part is with the temperature higher than the length direction central portion of the ink tank, to the length direction two of the ink tank
It is heated end.
About the invention that technical solution 2 is recorded, the black heating device recorded according to technical solution 1, which is characterized in that
The heating part be respectively arranged at the ink tank length direction central portion and both ends this at 3,
The ink heating device is also equipped with control unit, which independently controls the heating temperature of the heating part.
About the invention that technical solution 3 is recorded, according to the black heating device that technical solution 1 or 2 is recorded, feature exists
In,
The ink tank includes
1st sub- tank, is configured at length direction central portion；And
2nd sub- tank is configured at length direction both ends, supplies ink to the ink gun of the ink-jet recording apparatus,
The 2nd sub- tank is heated with the temperature higher than the 1st sub- tank heating part.
About the invention that technical solution 4 is recorded, the black heating device recorded according to technical solution 3, which is characterized in that
The 1st sub- tank includes
Flow path makes the ink being supplied to wriggle and moves ahead and circulate；And
Accumulating part stockpiles the ink for having passed through the flow path, the supply of the sub- tank of Xiang Suoshu the 2nd.
About technical solution 5 record invention, according in technical solution 1 to 4 any one record black heating device,
It is characterized in that,
The heating part is set to the outer surface of the ink tank.
About the invention that technical solution 6 is recorded, the black heating device recorded according to technical solution 5, which is characterized in that
The heating part is created as the planar heating element of planar,
The ink heating device is also equipped with:
Elastomeric element, stacking it is being set to the planar heating element with the ink tank opposite side；
Plate-shaped member, stacking it is being set to the elastomeric element with the planar heating element opposite side；And
Fixation member is pressed, the plate-shaped member is push-fitted into the ink tank side.
The invention that technical solution 7 is recorded provides a kind of ink-jet recording apparatus, which is characterized in that has:
The black heating device that any one in technical solution 1 to 6 is recorded；And
Ink gun will be ejected into recording medium by the ink of the black heating devices heat.
In accordance with the invention it is possible to provide the ink of the temperature unevenness of the ink in the ink tank on the length direction that can reduce ink tank
Heating device and the ink-jet recording apparatus for having the ink heating device.
Detailed description of the invention
Fig. 1 is the figure for being shown as the primary structure of ink-jet recording apparatus of an embodiment of the invention.
Fig. 2A is the figure for showing an example of structure for head unit, is the head list from side in the case where head unit
The skeleton diagram of the internal structure of member.
Fig. 2 B is the figure for showing an example of structure for head unit, is from recording medium side in the case where head unit
Head unit internal structure skeleton diagram.
Fig. 3 is the approximate stereogram of black heating device.
Fig. 4 is the approximate stereogram of black heating device.
Fig. 5 is the general view of ink tank.
Fig. 6 is the skeleton diagram for showing the installation section of the ink tank heating device for ink tank, is the line VI -- VI along Fig. 3
Face arrow pseudosection.
Fig. 7 is the approximate stereogram for showing the installation section of the thermistor for ink tank.
Fig. 8 is the summary for showing the connection between the primary structure of black emitting mechanism and each section of black emitting mechanism
Figure.
(symbol description)
1: ink-jet recording apparatus；40: control unit；50: ink tank；51: the 1 sub- tanks；52: the 2 sub- tanks；60: ink tank heating dress
It sets；61: planar heating element (heating part)；62: elastomeric element；63: metal plate (plate-shaped member)；64: fixing screws (press pressing
Determine component)；80: black heating device；241: ink gun；511: flow path；513: accumulating part.
Specific embodiment
Hereinafter, using attached drawing, the ink-jet recording apparatus and ink tank heating device of the embodiment that the present invention will be described in detail.
But the range of invention is not limited to illustrative example.In addition, in the following description, about with same function and structure
Part add same symbol and the description thereof will be omitted.
Fig. 1 is the figure for being shown as the primary structure of ink-jet recording apparatus 1 of an embodiment of the invention.
Ink-jet recording apparatus 1 of the invention has sheet feed section 10, image forming part 20, paper discharge unit 30 and control unit 40.
In ink-jet recording apparatus 1, according to the control of control unit 40, it is situated between for the record for being transported to image forming part 20 from sheet feed section 10
After matter P forms image by image forming part 20, recording medium P is discharged to paper discharge unit 30.
Sheet feed section 10 keeps carrying out the recording medium P of image formation, is supplied to image forming part before image formation
20.Sheet feed section 10 has paper supply tray 11 and conveying unit 12.
Paper supply tray 11 is configured to that the component of the plate of one or more recording medium P can be loaded.Paper supply tray
11 are configured to be moved up and down according to the amount of placed recording medium P, and being maintained at can be most upper by the conveying of conveying unit 12
At the position of the recording medium P in face.
Conveying unit 12 includes transport mechanism, is rotated by 121,122 pairs of annular bands 123 of more (such as 2) rollers
It drives and the recording medium P on band 123 is transported；And supply unit, it will be placed in the recording medium P of paper supply tray 11
Uppermost medium be transferred to band 123.Conveying unit 12 transports with the spinning movement of band 123 and is transferred to band 123 by supply unit
Recording medium P.
Image forming part 20 is ejected into ink on recording medium P to form image.Image forming part 20 is formed with image
Drum 21, transfer unit 22, paper heating part 23, head unit 24, irradiation portion 25 and transport unit 26.
Image forms drum 21 along cylindric outer peripheral surface bearing recording medium P, and accompanying rotation transports recording medium P.
Image formed drum 21 conveyance plane and paper heating part 23, head unit 24 and irradiation portion 25 it is opposite, for the note transported
Recording medium P carries out forming relevant processing to image.
Transfer unit 22 is arranged at the conveying unit 12 of sheet feed section 10 and image forms the position between drum 21, will be by transporting
The recording medium P that portion 12 transports is transferred to image and forms drum 21.The record that there is transfer unit 22 carrying to be transported by conveying unit 12
The recording medium P carried by swing arm portion 221 is transferred to the cylindrical shape that image forms drum 21 by the swing arm portion 221 of one end of medium P
Handover drum 222 etc., the recording medium P in conveying unit 12 is lifted to by swing arm portion 221 and is transferred to handover drum 222, thus
Recording medium P is transferred to image and forms drum 21 to the direction guidance for the outer peripheral surface for forming drum 21 along image.
Paper heating part 23 forms the recording medium P that drum 21 is carried to image and heats.Paper heating part 23 has
Such as infrared heater etc. is generated heat based on being powered.Paper heating part 23 be set to image formed drum 21 outer peripheral surface it is attached
Closely and the conveyance direction about the rotation conveying recording medium P for forming drum 21 by image is in the upstream side of head unit 24.Pass through
Control unit 40 controls the fever of paper heating part 23 so that image form that drum 21 carried by paper heating part 23 near
Recording medium P become scheduled temperature.
Head unit 24 forms the recording medium P that drum 21 carried for image and sprays ink and form image.It is (green for C
Color), M (magenta), Y (yellow), K (black) each color be provided independently from head unit 24.In Fig. 1, for accompanying image
The conveyance direction of recording medium P for forming the rotation of drum 21 and being transported is disposed with and each color of Y, M, C, K from upstream
Corresponding head unit 24.
About the direction (width direction) vertical with the conveyance direction of recording medium P, to cover the whole of recording medium P
Length (width) is provided with the head unit 24 of present embodiment.I.e., ink-jet recording apparatus 1 is the line head dummy ink-jet of single-pass manner
Recording device.Head unit 24 can arrange multiple ink guns 241 (referring to Fig. 2) and constitute line head.
Fig. 2A and Fig. 2 B is the figure for showing the internal structure of head unit 24.Fig. 2A is the feelings of the head unit 24 from side
The skeleton diagram of internal structure under condition.Fig. 2 B is the outline of the internal structure from recording medium side in the case where head unit 24
Figure.In addition, referring to the paper from up and down direction and opposite Fig. 1 along head unit 24 the case where head unit 24 from side
Situation obtained from the face observation head unit 24 in the vertical direction in face (X-direction).
In addition, as shown in Figure 2A and 2B, head unit 24 has multiple ink guns 241.In illustrative example, at one
16 ink guns 241 are provided in head unit 24.Every 2 ink guns 241 in 16 ink guns 241 become one group, constitute 8
Ink spray module 242.
Ink gun 241 is respectively provided with multiple nozzles 2411.Ink gun 241 sprays ink from multiple nozzles 2411, by image shape
The recording medium P that drum 21 is carried is formed in image.I.e., ink gun 241 is configured to multiple nozzles 2411 in head unit 24
Lower face side expose.Ink gun 241 shown in Fig. 2 B have multiple nozzles 2411, multiple nozzle 2411 be configured to along
The column of the nozzle of X-direction are configured to two column.
8 ink spray modules 242 for example form two column along the X direction as shown in Figure 2 B.This two column are configured to spray
Black module 242 becomes mutually staggered about the direction orthogonal with X-direction each other.
In addition, being provided with the black heating device 80 heated to the ink for being supplied to ink gun 241 in head unit 24.It closes
It is described after the detailed content of black heating device 80.
Irradiation portion 25, which is radiated at, is ejected into recording medium P for ink used in the ink-jet recording apparatus 1 in present embodiment
Energy-ray after upper for hardening the ink.Irradiation portion 25 has the fluorescent tube such as low pressure mercury lamp, sends out the fluorescent tube
Light and irradiate the energy-rays such as ultraviolet light.Irradiation portion 25 is set to image and is formed near the outer peripheral surface of drum 21 and about passing through
Image forms the conveyance direction of the rotation conveying recording medium P of drum 21 in the downstream side of head unit 24.Irradiation portion 25 is directed to image
Form recording medium P irradiation energy ray that drum 21 is carried and that ink is sprayed to it makes to spray by the effect of the energy-ray
Out to the ink hardening on recording medium P.
As the fluorescent tube for issuing ultraviolet light, other than low pressure mercury lamp, moreover it is possible to enumerate with several hundred Pa~1MPa or so
The mercury lamp of operating pressure, the light source that can be used as bactericidal lamp, cold-cathode tube, ultraviolet laser source, metal halide lamp, shine two
Pole pipe etc..In them, it is preferably capable of irradiating ultraviolet light and the few light source of power consumption (such as light emitting diode with higher illumination
Deng).In addition, energy-ray is not limited to ultraviolet light, as long as having the energy for the property for hardening ink according to the property of ink to penetrate
Line, light source are also correspondingly replaced with the wavelength of energy-ray etc..
The recording medium P that energy-ray has been irradiated in illuminated portion 25 is formed drum 21 from image and is transported to paper discharge by transport unit 26
Portion 30.There is transport unit 26 band 263 for annular to carry out rotation driving to band by more (such as 2) rollers 261,262
Recording medium P is formed drum 21 from image and is transferred to the transport mechanism by transport mechanism that the recording medium P on 263 is transported
Cylindric handover drum 264 etc..The recording medium P that band 263 is transferred to by joining drum 264 is passed through band 263 by transport unit 26
It transports and passes out to paper discharge unit 30.
The recording medium P that the storage of paper discharge unit 30 is sent out by transport unit 26 from image forming part 20.Paper discharge unit 30 has plate
Discharge tray 31 of shape etc. loads the recording medium P after image is formed on the discharge tray 31.
Control unit 40 controls the movement of each section of ink-jet recording apparatus 1, the movement of overall control entirety.Control unit 40 has
Standby CPU (Central Processing Unit: central processing unit), ROM (Read Only Memory: read-only memory),
RAM (Random Access Memory: random access memory) etc..In control unit 40, system stored in ROM is read
The various processing routines such as program are simultaneously unfolded in RAM, the program being unfolded in RAM are executed by CPU, thereby executing such as image
The various control processing such as formation processing, the processing of above-mentioned liquor charging abnormality detection.
The ink used in the ink-jet recording apparatus 1 of present embodiment is not particularly limited, and e.g. ultraviolet light (UV) is hard
The ink of change type.The UV constrictive type ink is in the state of not illuminated UV, according to temperature in gel state and liquid (colloid) shape
Phase transformation between state.Such as the ink has scheduled temperature, such as 40~100 DEG C or so of phase transition temperature, is risen by being heated
Occur equably to liquefy (colloidization) more than to the phase transition temperature.On the other hand, which is including common room temperature degree (0
~30 DEG C) including the scheduled temperature occur below gelation.
Here, illustrating the black heating device 80 being arranged in head unit 24 referring to Fig. 3~8.Black heating device 80 is configured to
Have: ink tank 50, along its length arrangement stockpile ink multiple sub- tanks and it is integrally formed；And ink tank heating device 60, setting
In the outer surface of the ink tank 50, ink tank 50 is heated.
Fig. 3 and Fig. 4 is the approximate stereogram of black heating device 80.Fig. 5 is the general view of ink tank 50.Fig. 6 is to show
It is the VI-VI along Fig. 3 out for the skeleton diagram of the state after the installation of the installation section of the ink tank heating device 60 of ink tank 50
The arrow pseudosection in the face of line.Fig. 7 is figure obtained from amplifying a part of Fig. 3, is the mounting portion for showing thermistor 65
The approximate stereogram divided.Fig. 8 is the primary structure and black emitting mechanism 300 for showing the black emitting mechanism 300 including ink tank 50
Each section between connection synoptic diagram.In addition, in fig. 8, omitting in multiple ink guns 241 and multiple 2nd sub- tanks 52
A part and show.
Here, by Z-direction is set as along the direction of the black emission direction for the head unit 24 for being provided with black heating device 80, it will
The direction orthogonal with X-direction and Z-direction is set as Y-direction.
Ink tank 50 stockpiles the ink from black supply unit 70 (referring to Fig. 8) supply, and the ink stockpiled is supplied to ink gun 241.Separately
Outside, ink tank 50 recycles and stockpiles the ink not sprayed from ink gun 241.
Ink tank 50 is slenderly formed in the X direction, by the 1st sub- tank 52 of sub- tank 51 and 4 the 2nd is formed integrally and structure
At.The 1st sub- tank 51 and 4 the 2nd sub- tanks 52 are disposed with along the length direction of ink tank 50.
As shown in Fig. 3~Fig. 5, the 1st sub- tank 51 is recessed in the length direction central portion of ink tank 50 and is arranged, and stockpiles and supplies from ink
The ink that portion 70 supplies, and stockpile the ink recycled from ink gun 241.1st sub- tank 51 has the solid line of the ink for making to be supplied to such as Fig. 5
Wriggle the flow path 511 for moving ahead and circulating shown in arrow, is formed in the one end of the flow path 511 from black supply unit 70 or ink-jet
The inflow part 512 of the black inflow as shown in the dotted arrow of Fig. 5 of first 241 supply or recycling.In addition, in the another of flow path 511
End is formed with the accumulating part 513 for being accumulated in the ink passed through in flow path 511 and being supplied to the 2nd sub- tank.As a result, from inflow part 512
The arrow direction of one edge Fig. 5 of ink of supply, which is wriggled, to move ahead on one side through flow path 511, is then accumulated in accumulating part 513.Using more
The ink for reaching accumulating part 513 is passed out to multiple 2 sub- tanks 52 by a pump P1 (referring to Fig. 8).
As shown in Fig. 3~Fig. 5, respectively it is recessed at length direction both ends and two the 2nd sub- tanks 52 is set, the 2nd sub- tank 52 is deposited
The ink that integral is not supplied from the 1st sub- tank.It is fed separately to the ink for being accumulated in each 2nd sub- tank 52 to be arranged at the 8 of head unit 24
Two in a ink spray module 242.It is single thereby, it is possible to be directed to 8 ink spray modules 242 for being arranged at head unit 24 with two
It is safeguarded position.
In addition, the quantity of the 2nd sub- tank 52 is not limited to 4, it can also be according to the ink spray module 242 for being arranged at head unit 24
Quantity suitably change.
As shown in Figure 3 and 4, ink tank heating device 60 is installed into the side for covering ink tank 50 formed as described above
Face is whole.As shown in fig. 6, ink tank heating device 60 is configured to the planar heating element for having the outer surface for being arranged at ink tank 50
(heating part) 61, be stacked it is being set to planar heating element 61 with 50 opposite side of ink tank elastomeric element 62, be stacked and set
Be placed in elastomeric element 62 with the metal plate (plate-shaped member) 63 of 61 opposite side of planar heating element, by metal plate 63 by pressing
Surely the fixing screws (pressing fixation member) 64 of the ink tank side, the thermistor 65 being placed in contact with ink tank 50, independence are arrived
The above-mentioned control unit 40 of heating temperature etc. of ground control planar heating element 61.As shown in Figure 3 and 4, planar heating element
61, elastomeric element 62, metal plate 63, fixing screws 64 and thermistor 65 be separated into the length direction central portion of ink tank 50 with
And both ends this 3 positions are arranged.The planar heating element 61 etc. for being separated into 3 positions to be arranged is configured at and in ink tank 50
Length direction central portion setting the 1st sub- tank 51, ink tank 50 length direction both ends be arranged the 2nd sub- tank 52 it is right respectively
The position answered.
As shown in fig. 6, planar heating element 61 and the outer surface of ink tank 50 are directly contact arranged, by ink tank 50
Outer surface is heated, and is heated to the ink in ink tank 50.It can also be coated between planar heating element 61 and ink tank 50
The lubricants such as lubricating grease, but due in the manufacture of ink-jet recording apparatus 1, working hour increasing when the repairing of ink tank heating device 60 is replaced
Greatly, so lubricant can also be not coated by.In addition, planar heating element 61 is directed to, according to the temperature detected by thermistor 65
Temperature control is carried out by control unit 40.
As such planar heating element 61 for example using on laminal insulation and thermal insulation material by band-like heater
It is configured to wavy heater, specifically using rubber heater etc..Using rubber heater, Neng Gouzhen
The adaptation of ink tank 50 is improved and reduces manufacturing cost.
As shown in fig. 6, elastomeric element 62 is set between planar heating element 61 and metal plate 63.About elastomeric element
62, the state that flexible deformation occurs in thickness direction (Y-direction) is pressed by fixing screws 64 across the metal plate 63
It is configured, due to pressing planar heating element 61 in its restoring force in face direction (XZ plane) with substantially uniform power, by face
Shape heating element 61 is pressed into ink tank 50.As elastomeric element 62, as long as the pressing elasticity by fixing screws 64 etc. becomes
Shape and since its restoring force can press the material of planar heating element 61, then can be arbitrary material, such as can be
Rubber, sponge, other spongy materials or porous material etc..
As shown in fig. 6, metal plate 63 is arranged to contact and constitute the outer surface of ink tank heating device 60 with elastomeric element 62.
As shown in Fig. 3, Fig. 4 and Fig. 6, fixing screws 64 are penetrated through in the setting of 3 positions of the length direction of ink tank 50
Each metal plate of metal plate 63 is arranged, and keeps them fixed with respect to ink tank 50 respectively.In Fig. 3 and example shown in Fig. 4,
3 positions are set to for the metal plate 63 of the length direction central portion setting in ink tank 50, in the length side of ink tank 50
The metal plate 63 being arranged to both ends is respectively arranged at 2 positions.In addition, the fixing screws of each setting to each metal plate 63
64 quantity and installation site is not limited to illustrative example, fixes as long as metal plate 63 can be pressed into 50 side of ink tank, can
To be arbitrary quantity and installation site.
As shown in fig. 6, fixing screws 64 are configured to have diameter between head 641 and axle portion 642 in the axial direction and compare head
The spacer portion 643 that portion 641 is small and diameter is bigger than axle portion 642.By via planar heating element 61, elastomeric element 62 and gold
Belong to the internal thread part 53 that axle portion 642 is screwed to the outside wall surface for being formed in ink tank 50 by plate 63, fixing screws 64 are fixed in ink tank
50.Fixing screws 64 are configured to when axle portion 642 is screwed the outside wall surface predetermined length of ink feed tank 50, the front end of spacer portion 643
Face 644 abuts to the outside wall surface of ink tank 50, and axle portion 642 will not be further inserted into internal thread part 53.
In addition, as shown in fig. 6, the fixing screws 64 in planar heating element 61, elastomeric element 62 and metal plate 63 are passed through
Hole portion 611,621,631 corresponding with fixing screws 64 is respectively formed at logical position in advance.The hole portion of planar heating element 61
611 and the diameter of hole portion 621 of elastomeric element 62 be formed, the hole of metal plate 63 sufficiently bigger than the diameter of spacer portion 643
The diameter in portion 631 is formed the degree roughly the same with the diameter of spacer portion 643.As a result, when installing fixing screws 64, energy
Fixing screws 64 are enough made easily to insert planar heating element 61 and elastomeric element 62.In addition, installation fixing screws 64 it
Afterwards, the head 641 of fixing screws 64 abuts to metal plate 63 and metal plate 63 can be reliably pressed into 50 side of ink tank, into
And it is able to suppress the positional shift in the face direction (XZ in-plane) of metal plate 63.
In addition, as shown in fig. 6, the spacer portion 643 of fixing screws 64 is formed its axial length L than planar heating part
Adding up to for the thickness of the thickness and metal plate 63 of elastomeric element 62 before the thickness of part 61, flexible deformation is short.Therefore, if it is solid
The axle portion 642 for determining screw 64 is screwed to internal thread part 53 via each hole portion 611,621,631, then head 641 with ink tank 50 it
Between sandwich planar heating element 61, elastomeric element 62 and metal plate 63, the metal plate 63 abutted with head 641 is pressed against bullet
Property 62 side of component.Flexible deformation occurs for elastomeric element 62 as a result, and planar heating element 61 is pressed into ink tank using its restoring force
50 sides.
In addition, elastomeric element 62 can be adjusted in the elasticity of thickness direction by adjusting the axial length L of spacer portion 643
Deflection can compatibly set and be directed to the pressing force that planar heating element 61 applies by the restoring force of elastomeric element 62.
It is contacted as shown in fig. 7, thermistor 65 is installed into ink tank 50.Specifically, in planar heating element 61, bullet
Property component 62 and metal plate 63 edge at form notch and ink tank 50 and expose, pacified for the exposed division 54 by screw 651
Equipped with thermistor 65.It is fixed in addition, thermistor 65 may not be with screw 651, for example, it is also possible to be formed film
Shape and be fixed in the mode sandwiched between ink tank 50 and planar heating element 61.In addition, being set for 1 arrangement of exposed division 54
Two thermistors 65 are set, the side in them is arranged to spare.
In addition, ink tank heating device 60 is also equipped with thermostat 66.Thermostat 66 exceedingly becomes in planar heating element 61
It is acted in the case where high temperature, makes to stop to the energization of planar heating element 61.By the way that thermostat 66 is arranged, can more effectively press down
Make the damage of the planar heating element 61 caused by excessive temperature rises.
As described above, planar heating element 61, elastomeric element 62, metal plate 63, fixing screws 64 and thermistor 65
Length direction central portion and this 3 positions of both ends of the one side of ink tank 50 are respectively arranged at, it is independent by control unit 40
Ground controls the heating temperature of each planar heating element 61.Specifically, control unit 40 is controlled, so that in the length of ink tank 50
The heating temperature of the planar heating element 61 of degree direction both ends setting is heated than the planar being arranged in the length direction central portion
Component 61 is high.
Here, ink tank 50 is slenderly constituted, so compared with length direction central portion, the heat dissipation at length direction both ends
Amount is big, and compared to central portion, the temperature of the ink for being contained in the inside of both ends side is easier to reduce.In the length direction of ink tank 50
Both ends side is provided with the 2nd sub- tank 52 that ink is supplied to ink gun 241, so if the temperature at the length direction both ends of ink tank 50
Degree reduces, it is likely that supplies the ink of low temperature to ink gun 241 and causes to spray the bad phenomenons such as bad.In contrast, at this
In embodiment, as described above, control unit 40 is controlled, so that the planar being arranged at the length direction both ends of ink tank 50
The temperature of heating element 61 is higher than the planar heating element 61 being arranged in length direction central portion, so can be to the 2nd sub- tank 52
Interior ink is unevenly sufficiently carried out heating without temperature, inhibits the ink that low temperature is supplied to ink gun 241.Inhibit to spray as a result,
The bad phenomenons such as bad out.
Specifically, control unit 40 is controlled, so that adding in the planar that the length direction both ends of ink tank 50 are arranged
5 DEG C higher than the heating temperature for the planar heating element 61 being arranged in length direction central portion of the heating temperature of thermal part 61 or so.
If the power supply of ink-jet recording apparatus 1 is switched on, control unit 40 starts the above-mentioned control for each planar heating element 61, nothing
It needs to change the heating temperature according to the black spray volume etc. based on multiple ink guns 241, and is continuously sprayed.
Next, illustrating the black emitting mechanism 300 in ink-jet recording apparatus 1 referring to Fig. 8.
Black emitting mechanism 300 is configured to the black supply unit 70 for having supply ink, stockpiles the ink supplied from black supply unit 70
The ink gun 241 for the ink that ink tank 50, ejection are supplied from ink tank 50 makes the nozzle 2411 of ink gun 241 as the pressure control of negative pressure
Portion 305 processed, is connected to the 1st sub- tank 52 of sub- tank 51 and the 2nd in ink tank 50 at the path 304 for connecting black supply unit 70 and ink tank 50
The recycling in path 303, the feed path 301 of the 2nd sub- tank 52 of connection and ink gun 241, connection ink gun 241 and the 1st sub- tank 51
Path 302, connection the 2nd sub- tank 52 and the ventilation path 306 of pressure control portion 305 etc..
In addition, in fig. 8, each path of the access as ink, but the specific knot in these each paths are shown using dotted line etc.
Structure is the path of the closure of conducting ink.
Black supply unit 70 is accumulated in the ink to circulate in each section of black emitting mechanism 300, which is fed into ink tank 50
1st sub- tank 51.
1st sub- tank 51 stockpiles the ink supplied from black supply unit 70, and the ink stockpiled is fed into the 2nd sub- tank 52.It is fed into
The ink of 1st sub- tank 51 is flowed into from inflow part 512, stockpiles accumulating part 513 via flow path 511, is supplied to the from the accumulating part 513
2 sub- tanks 52.
To the ink for the room temperature that the 1st sub- tank 51 is not heated from the supply of black supply unit 70, but the ink being supplied to is via flow path 511
It is fed into the 2nd sub- tank 52, so needing a degree of time until reaching the 2nd sub- tank 52.During this period, pass through
In the ink tank heating device 60 that the outside of the 1st sub- tank 51 is arranged, the ink for the room temperature for being fed into the 1st sub- tank 51 is fully added
Heat.Even if in the case where as a result, more than the black spray volume, can also inhibit the ink for supplying low temperature from the 1st sub- tank 51 to the 2nd sub- tank 52.
2nd sub- tank 52 stockpiles the ink supplied from the 1st sub- tank 51, and the ink stockpiled is fed into ink gun 241.As described above,
The outside of 2nd sub- tank 52 is provided with ink tank heating device 60, control unit 40 is with the length direction central portion compared to ink tank 50
Planar heating element 61 and the mode that keeps the temperature of 61 1 side of planar heating element at the length direction both ends high control
System.The ink being accumulated in the 2nd sub- tank 51 as a result, is sufficiently heated, can inhibit occur to ink gun 241 supply low temperature ink and
Caused ejection is bad.
Pressure control portion 305 is connect with the 2nd sub- tank 52, and the pressure in the 2nd sub- tank 52 is adjusted under the control of control unit 40.
Pressure control portion 305 becomes the pressure of nozzle 2411 of ink gun 241 via the 2nd sub- tank 52 and feed path 301 as a result,
Negative pressure state.Prevent as a result, formed without image, various maintenance Shi Mocong nozzles leak out.
Feed path 301, recycling path 302 and path 303,304 are portion of the ink by their internal tubuloses respectively
Part, such as constituted by resin etc. as raw material or with the material of good thermal conduction.
The sub- tank 51 of the connection of path 304 the 1st and black supply unit 70, are provided with pump P2 in the path 304.P2 is pumped in control unit
It is acted under 40 control, ink is supplied to the 1st sub- tank 51 from black supply unit 70.As pump P2, such as use diaphragm pump isometric(al) formula
Pump, tube pump etc..
Path 303 connects the 2nd sub- tank 51 of sub- tank 52 and the 1st, and pump P1 is provided in the path 303.P1 is pumped in control unit
It is acted under 40 control, ink is supplied to the 2nd sub- tank 52 from the 1st sub- tank 51.For example pumped using diaphragm pump isometric(al) formula as pump P1,
Tube pump etc..
Feed path 301 connects import 2412 and the 2nd sub- tank 52 of ink gun 241.
Recycle outlet 2413 and the 1st sub- tank 51 that path 302 connects ink gun 241.
Ventilation path 306 connects the 2nd sub- tank 52 and pressure control portion 305.Ventilation path 306 is that air passes through internal pipe
The component of shape will be used as raw material such as resin.Ventilation path 306, which becomes from 1 connect with pressure control portion 305, to be shared
Ventilation path 3061 is branched off into the construction with multiple branch's ventilation paths 3062 of each connection of multiple 2 sub- tanks 52.
In addition, recycling path 302, path 303, branch's ventilation path 3062 are respectively arranged with solenoid valve 307,308,309.
Solenoid valve 307~309 makes flow path, the ventilation path opening and closing of the ink for being provided with each solenoid valve under the control of control unit 40.
I.e., it is arranged at the opening and closing in the switching recycling of solenoid valve 307 path 302 in recycling path 302.In the 1st sub- tank 51 in path 303
The solenoid valve 308 being arranged between pump P1 switches the 1st sub- tank 51 and pumps the opening and closing that P1 is connect.It is arranged at branch's ventilation path
3062 solenoid valve 309 switches the opening and closing of the connection of the 2nd sub- tank 52 and pressure control portion 305.
In addition, the 2nd sub- tank 52 is other than above-mentioned various connecting portions by the container of closed can-like.That is, the 2nd sub- tank
Pressure in 52 according to the degree of the negative pressure applied by pressure control portion 305, there is the 1st sub- tank 51 of having no way of to supply ink etc. and change.
For example, if receiving in the state that solenoid valve 309 becomes the state closed and loses the negative pressure applied by pressure control portion 305
It is supplied to the ink received from the 1st sub- tank 51, then the increase measured with the ink in the 2nd sub- tank 52, the pressure in the 2nd sub- tank 52 increases
Add.
On the other hand, the 1st sub- tank 51 is the container opened to outside, regardless of the increase and decrease of ink amount all maintains substantially big
Air pressure.
More than, according to above embodiment, ink tank heating device 60 has: planar heating element 61 is arranged at ink tank
50 outer surface；Elastomeric element 62, be set to the planar heating element 61 with being stacked with 50 opposite side of ink tank；Metal plate
63, be set to the elastomeric element 62 with being stacked with 61 opposite side of planar heating element；And fixing screws 64, by the gold
Belong to plate 63 to be pressed into 50 side of ink tank and fix, so metal plate 63 50 side of ink tank can be pressed into and bullet using fixing screws 64
Property component 62 occur flexible deformation, using the restoring force of the elastomeric element 62 with uniform power press planar heating element 61.By
This, can make planar heating element 61 be adjacent to ink tank 50, can carry out correct temperature to ink tank 50 using planar heating element 61
Degree control, and efficiently ink tank 50 can be heated.
In addition, forming gap therebetween so being able to suppress since planar heating element 61 is adjacent to ink tank 50, being formed
Air layer.Thereby, it is possible to inhibit planar heating element 61, exceedingly temperature rises, and inhibits the damage of planar heating element 61.
In addition, planar heating element 61, elastomeric element 62, metal plate 63 and fixing screws 64 are respectively arranged at ink tank 50
Length direction central portion and length direction both ends this at 3, so by adjusting the heating temperature of each planar heating element 61
Degree, can be arranged temperature gradient on the length direction of ink tank 50 as needed.
In addition, having the control unit 40 for the heating temperature for independently controlling planar heating element 61, so can be by ink tank
Ink in 50 remains optimal temperature.
In addition, planar heating element 61 is rubber heater, so can reduce manufacturing cost, further increase for ink
The adaptation of tank 50.
In addition, black heating device 80 has: ink tank 50, arrange the 1st sub- tank 51 and the 2nd sub- tank 52 along its length and by one
Body forming；And planar heating element 61, ink tank 50 is heated, planar heating element 61 is with the length direction than ink tank 50
The high temperature of central portion heats the length direction both ends of ink tank 50, so can be big to heat dissipation capacity with higher temperature
The length direction both ends of ink tank 50 heated.Thereby, it is possible to reduce the temperature of the ink of ink tank 50 in the longitudinal direction not
?.
In addition, ink tank 50 includes the 1st sub- tank 51, it is configured at length direction central portion；And the 2nd sub- tank 52, it is configured at length
Direction both ends are spent, ink are supplied to ink gun 241, planar heating element 61 is with the temperature higher than the 1st sub- tank 51 to the 2nd sub- tank 52
It is heated, so high temperature can be remained the ink before being fed into ink gun 241.Therefore, it is able to suppress hair
Black ejection is bad caused by the raw ink for supplying low temperature to ink gun 241.
In addition, the 1st sub- tank 51 includes flow path 511, so that the ink being supplied to is wriggled and move ahead and circulate；And accumulating part 513,
The ink by flow path 511 is stockpiled, is supplied to the 2nd sub- tank 52, so can be by planar heating element 61 to being supplied to the 1st sub- tank
51 ink is sufficiently carried out heating.Even if can also inhibit to supply to the 2nd sub- tank 52 low in the case where as a result, more than the black spray volume
The ink of temperature can more reliably inhibit the ejection that ink occurs bad.
In addition, in the above-described embodiment, being set as the length direction central portion and both ends in the outer surface of ink tank 50
This 3 positions are provided with planar heating element 61, but not limited to this.I.e., it for example also can be set to cover the length of ink tank 50
A planar heating element 61 is arranged in the mode of direction entirety, also can be set to and is arranged two in such a way that overlay length direction is whole
A planar heating element 61.
Added in addition, for example also can be set in the outer surface of ink tank 50 at 4 of length direction with upper bit setting planar
Thermal part 61.In this case, as described above, control unit 40 is preferably set at the length direction both ends side configuration of ink tank 50
61 1 side of planar heating element temperature it is higher than the planar heating element 61 configured in length direction central portion side.
In addition, in the above-described embodiment, being set as independently controlling adding for 3 planar heating elements 61 by control unit 40
Hot temperature, but not limited to this.For example, it is also possible to be set as being configured to for 3 planar heating elements 61 being integrally constituted, planar is constituted
The wiring density of the band-like heater of heating element 61 becomes in the length direction central portion side of ink tank 50 to be dredged, in the length of ink tank 50
Direction both ends side becomes close.Thereby, it is possible to keep the heating temperature of the length direction both ends side of ink tank 50 higher than central portion.
In addition, in the above-described embodiment, being set as ink tank heating device 60 and being configured to distinguish along the length direction of ink tank 50
Respectively have 3 planar heating elements 61, elastomeric element 62 and metal plate 63, but not limited to this.For example, being both configured to use
3 planar heating elements 61 are completely covered in 1 elastomeric element 62 and metal plate 63, are also configured to the bullet with 2 or more
3 planar heating elements 61 are completely covered in property component 62 and metal plate 63.
It, can will be sharp but as long as having in addition, in the above-described embodiment, be set as using metal plate 63 as plate-shaped member
The rigidity of the degree of elastomeric element 62 is passed to the pressing force that fixing screws 64 obtain, then even if not being that made of metal can also be with,
It can be such as resin system.
In addition, in the above-described embodiment, it is set as using fixing screws 64 as pressing fixation member, but as long as can be
Metal plate 63 is pressed into fixed metal plate 63 in the state of 50 side of ink tank, then can be arbitrary means.Such as it is also possible to
So-called springlock.
In addition, in the above-described embodiment, being set as ink tank heating device 60 and having thermistor 65, but as long as can be pacified
Temperature is detected loaded on ink tank 50 or planar heating element 61, then can be any probe unit.Such as thermoelectricity also can be used
It is even, in this case, it is configured to sandwich between the outside wall surface of ink tank 50 and planar heating element 61.In addition, ink tank heating dress
Setting 60 may not possess the probe units such as thermistor 65.
In addition, in the above-described embodiment, being set as being provided with planar heating element 61 in the outer surface of ink, but be not limited to
This, both can be set in the inside of ink tank 50, can also non-contactly be arranged for ink tank 50.It is being directed to ink tank 50 non-contactly
In the case where planar heating element 61 is arranged, which can be both not formed as planar, be also possible to infra-red-emitting
The heat source of structure.
Industrial availability
The present invention can be used in black heating device and ink-jet recording apparatus.
Claims (6)
1. a kind of ink heating device, is set to ink-jet recording apparatus, heats to ink, which is characterized in that have:
Ink tank, arrangement stockpiles multiple sub- tanks of ink and is integrally formed along its length；
The ink tank is heated in heating part；And
Temperature sensing portion detects the temperature of the ink tank,
The heating part and the temperature sensing portion are at least respectively arranged at the length direction central portion and two of the ink tank
End this at 3,
The ink heating device has control unit, which independently controls according to the temperature detected by the temperature sensing portion
The heating temperature of the heating part is made,
The heating part is with the temperature higher than the length direction central portion of the ink tank, to the length direction both ends of the ink tank
It is heated,
The heating temperature of the heating part is adjusted respectively by the control unit, to be set on the length direction of ink tank
Set temperature gradient.
2. ink heating device according to claim 1, which is characterized in that
The ink tank includes
1st sub- tank, is configured at length direction central portion；And
2nd sub- tank is configured at length direction both ends, supplies ink to the ink gun of the ink-jet recording apparatus,
The 2nd sub- tank is heated with the temperature higher than the 1st sub- tank heating part.
3. ink heating device according to claim 2, which is characterized in that
The 1st sub- tank includes
Flow path makes the ink being supplied to wriggle and moves ahead and circulate；And
Accumulating part stockpiles the ink for having passed through the flow path, the supply of the sub- tank of Xiang Suoshu the 2nd.
4. according to claim 1 to black heating device described in any one in 3, which is characterized in that
The heating part is set to the outer surface of the ink tank.
5. ink heating device according to claim 4, which is characterized in that
The heating part is created as the planar heating element of planar,
The ink heating device is also equipped with:
Elastomeric element, stacking it is being set to the planar heating element with the ink tank opposite side；
Plate-shaped member, stacking it is being set to the elastomeric element with the planar heating element opposite side；And
Fixation member is pressed, the plate-shaped member is push-fitted into the ink tank side.
6. a kind of ink-jet recording apparatus, which is characterized in that have:
Black heating device described in any one in claim 1 to 5；And
Ink gun will be ejected into recording medium by the ink of the black heating devices heat.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014208472 | 2014-10-10 | ||
| JP2014-208472 | 2014-10-10 | ||
| PCT/JP2015/077893 WO2016056450A1 (en) | 2014-10-10 | 2015-10-01 | Ink heating device and inkjet recording device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107107619A CN107107619A (en) | 2017-08-29 |
| CN107107619B true CN107107619B (en) | 2019-06-28 |
Family
ID=55653065
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580054469.6A Active CN107107619B (en) | 2014-10-10 | 2015-10-01 | Black heating device and ink-jet recording apparatus |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9994028B2 (en) |
| EP (1) | EP3205504B1 (en) |
| JP (1) | JP6620753B2 (en) |
| CN (1) | CN107107619B (en) |
| WO (1) | WO2016056450A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6809254B2 (en) * | 2017-01-27 | 2021-01-06 | セイコーエプソン株式会社 | Liquid injection system and computer program |
| JP7346826B2 (en) | 2019-01-24 | 2023-09-20 | 京セラドキュメントソリューションズ株式会社 | Head unit and inkjet recording device |
| JP7422561B2 (en) * | 2020-02-28 | 2024-01-26 | 株式会社Ｓｃｒｅｅｎホールディングス | printing device |
| CN113232421A (en) * | 2021-04-26 | 2021-08-10 | 北京中电元德科技有限责任公司 | Secondary ink box for ink-jet printer |
| KR20230133762A (en) | 2022-03-11 | 2023-09-19 | 캐논 가부시끼가이샤 | Liquid discharge apparatus, liquid discharge method, article manufacturing method |
| GB202204762D0 (en) * | 2022-04-01 | 2022-05-18 | Ricoh Co Ltd | Ink delivery system |
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| US6312094B1 (en) * | 1997-07-30 | 2001-11-06 | Toshiba Tec Kabushiki Kaisha | Ink-jet printer |
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| US7207641B2 (en) * | 2003-09-05 | 2007-04-24 | Konica Minolta Holdings, Inc. | Inkjet head |
| US20070035594A1 (en) * | 2005-08-10 | 2007-02-15 | Brooks Jeffrey B | Ink supply system |
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- 2015-10-01 CN CN201580054469.6A patent/CN107107619B/en active Active
- 2015-10-01 WO PCT/JP2015/077893 patent/WO2016056450A1/en active Application Filing
- 2015-10-01 JP JP2016553064A patent/JP6620753B2/en active Active
- 2015-10-01 EP EP15849350.2A patent/EP3205504B1/en active Active
- 2015-10-01 US US15/513,860 patent/US9994028B2/en active Active
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| JPH09248918A (en) * | 1996-03-15 | 1997-09-22 | Sharp Corp | Image recording apparatus |
| US6312094B1 (en) * | 1997-07-30 | 2001-11-06 | Toshiba Tec Kabushiki Kaisha | Ink-jet printer |
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Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2016056450A1 (en) | 2017-07-20 |
| CN107107619A (en) | 2017-08-29 |
| WO2016056450A1 (en) | 2016-04-14 |
| US9994028B2 (en) | 2018-06-12 |
| US20170291422A1 (en) | 2017-10-12 |
| EP3205504B1 (en) | 2019-08-21 |
| EP3205504A1 (en) | 2017-08-16 |
| JP6620753B2 (en) | 2019-12-18 |
| EP3205504A4 (en) | 2018-05-23 |
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